Question

Average height of 9 students
is 5.5 ft .one new student of

height 5.2 ft also joins the
class .find the new average​

Answer 1

Answer:

5.47 ft is the new average height of 10 students

Step-by-step explanation:

Let's calculate total height of 100 students = (5.5 x 9) + 5.2 = 54.7

Now the average height of 10 students = 54.7/10 = 5.47